Corona SDK - combining elements

Hi everyone, I've written and coded a basic book in Corona - this works well (however I do have a few tweaks to make myself). However, there are 3 (which I'm sure are little things) that I cant seem to fix, which I'm hoping that someone on freelancer can do for me. Before you read on, please note that this is only for $30, so please, no bigging over this, only bidders around $30 will be considered. Within the code theres a navigation system, you click on it and you see thumbnails for all the pages, this works for the first 4 pages, however the rest dont seem to appear - going though the code, it does look like its possible to have more than 4 thumbnails, so, I'm hoping that someone can figure out what to do here (although, to be honest, I'm happy to remove the navigation button, however, it is a nice feature). 2: I have a Corona source code for a basic drawing app that I'd love adding to the current code (simply as a button on the main page) - on the drawing app a button will need to be added to go back to the main page. 3: I also have a Corona source code for a basic flying game which, again, I'd love to be added to the curren code (simply as a button on the main page) - can a back button be added to the game (for the game play area and when you have finished the game, so you can go back to the main page at any time). Thats it really - most of the code is all ready, its really a case of linking them all up :) Many thanks, Chris